Duverger's law

English Etymology Attributed to Maurice Duverger, French sociologist who published on the subject in the 1950s and 1960s. Proper noun en political science The principle that plurality-rule elections (such as first past the post) structured within single-member districts tend to favour a two-party system, and that the double-ballot majority system and proportional representation tend to favor multipartyism. en Michael Tomasky Why a Trump Third Party Would Be a Boon for Democrats The New York Times 2021-01-28 https://www.nytimes.com/2021/01/28/opinion/trump-republicans-third-party.html 0362-4331 Out of that work emerged Duverger’s Law, which holds that single-member districts tend to produce two-party systems. And in the long run, the inexorable machinery of Duverger’s Law will ensure that the Patriot Party is folded back into the Republican Party. https://web.archive.org/web/20231028164039/https://www.nytimes.com/2021/01/28/opinion/trump-republicans-third-party.html 28 October 2023 Further reading en eponyms